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Data transmission method and controller

A data transmission method and controller technology, applied in the communication field, can solve problems such as low utilization rate of BRAS equipment, uneven distribution of resources, and different utilization rate of BRAS equipment resources

Active Publication Date: 2016-07-13
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of broadband users in different areas is different, resulting in different resource utilization rates of BRAS equipment in different areas, that is, there is a problem of uneven distribution of resources; in addition, BRAS equipment is usually configured according to the business during peak hours, while BRAS equipment in low-peak access periods Equipment utilization is very low

Method used

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  • Data transmission method and controller
  • Data transmission method and controller
  • Data transmission method and controller

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0031] If the access server only provides services for users in a fixed area, problems such as uneven resource distribution and low resource utilization are likely to occur. The data transmission system of the metropolitan area network in this embodiment includes: a controller, an aggregation switch, and an access server, and each access server constitutes a server resource pool, that is, the access server resources in the metropolitan area network can be deployed in a centralized manner. In the pool, the management and scheduling of the controller are used to realize the data transmission between the aggregation switch and the access server. Realize centralized management and control of resources, solve the problem of low resource utilization caused by the scattered deployment of traditional access server equipment, and effectively reduce operating costs. In the embodiment of the present application, the switch includes a convergence switch HJSW, and the access server include...

Embodiment 2

[0051] refer to image 3 , shows a schematic diagram of the architecture of the BRAS resource pool system according to the embodiment of the present invention.

[0052] The system composed of the BRAS resource pool includes: BRAS resource pool controller (that is, controller), BRAS network element (that is, access server), HJSW (that is, switch) and OLT, wherein, the BRAS network element and HJSW are connected through VXLAN Tunnel data transmission, data transmission between HJSW and OLT through QinQ tunnel.

[0053] Among them, the BRAS resource pool controller has the following characteristics:

[0054] 1. BRAS resource management: obtain resource information (including number of users, traffic, CPU load, etc.) from BRAS network elements in the resource pool;

[0055] 2. User resource management: obtain user resource information on the access side from the aggregation switch (HJSW);

[0056] 3. Tunnel resource management: manage and allocate global VXLAN tunnel resources;...

Embodiment 3

[0120] In this embodiment, the controller performs unified scheduling on the BRASs in the BRAS resource pool to realize the forwarding of traffic between the HJSW and the BRASs.

[0121] refer to Figure 8 , shows a schematic diagram of traffic transmission of the BRAS resource pool system in the embodiment of the present invention.

[0122] 8.02. HJSW receives the first data packet of the traffic from the OLT.

[0123] 8.04. HJSW uploads the first data packet to the BRAS resource pool controller through the PacketIn channel.

[0124] 8.06. The BRAS resource pool controller selects a BRAS network element from the BRAS resource pool based on the scheduling rule.

[0125] 8.08. The controller sends VTEP configuration to HJSW and BRAS, and a VXLAN tunnel is established between HJSW and BRAS; and the controller performs VXLAN encapsulation on the first data packet, and sends forwarding flow tables to HJSW and BRAS respectively.

[0126] Wherein, the destination address containe...

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Abstract

The embodiment of the invention provides a data transmission method and a controller, so that the resource utilization rate is improved and the resource wasting is prevented. The method comprises: a first data packet, reported by a source network device, of a flow is received; according to the first data packet, a destination network device is determined; VXLAN tunnel forwarding flow tables are issued to the source network device and the destination network device respectively, wherein the VXLAN tunnel forwarding flow tables are used for guiding the network devices to carry out v packaging and forwarding on received follow-up data packets of the flow; VXLAN packaging is carried out on the first data packet and the first data packet after the VXLAN packaging is returned to the source network device, so that the source network device sends the first data packet after the VXLAN packaging to the destination network device. Therefore, on the basis of unified management and control by a controller, the resource utilization rate is improved and the resource wasting is prevented.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method and a controller. Background technique [0002] Broadband Remote Access Server (Broadband Remote Access Server, BRAS) is an access gateway for broadband network applications. It is located at the edge layer of the backbone network and can complete data access to IP / ATM networks with user bandwidth. Currently, access methods are mainly based on passive Optical fiber network (Passive Optical Network, PON) / various types of digital subscriber lines (Digital Subscriber Line, xDSL) / cable modem (CableModem, CM) / high-speed Ethernet technology local area network (LocalAreaNetwork, LAN) / wireless broadband data access wireless local area network ( WirelessLocalAreaNetworks, WLAN), etc., to achieve broadband Internet access for commercial buildings and community residents. [0003] In the existing MAN networking model, the BRAS is deployed in the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/741H04L12/931H04L45/74
CPCH04L12/4641H04L45/74H04L49/70
Inventor 刘建锋
Owner NEW H3C TECH CO LTD
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